Hose clamp tool



Sept 14, 1943- H. J. HENSEN I HOSE CLAMP TOOL Filed March 31, 1942 2 Sheets-Sheet 1 I rn entar Hen/:7 J/remsem Sept. 14, 1943. H. J. HENSEN 2,329,535

- HOSE CLAMP TOOL Filed March 31, 1942 2 Sheets-Sheet 2 Inventor f engJb ensen Patented Sept. 14, 1943 v The present invention relates to new anduse ful improvements in hose clamp tools, and has for its' primary object to provide, in a manner zas here-,- inafter set forth, a device of this character comprising novel means for drawing wireyclamps tightly around various sizes of hose within a given range. I I

Another very important object of the invention is to provide a tool of the aforementioned charac ter which is adapted tofunction satisfactorily on any suitable wire.

Other objects of the invention are to vprovide a hose clamp tool which will be comparatively simple in construction, strong, durable, highly efficient and reliable in use, compact, light in Weight, and which may be manufactured at low cost.

All of the foregoing and still further objects and advantages of the invention will become apparent from a study of the following specification, taken in connection with the accompanying drawings wherein like characters of reference designate corresponding parts throughout the several views, and wherein:

Figure lis a view in side elevation of a hose clamp tool constructed in accordance with the present invention.-

Figure 2 is a plan view with a portion broken awayin section, showing the tool at the start of theclamp tightening operation.

FigureB is a plan view, showing the tool after the clamp tightening operation has been completed.

Figure 4 isa cross sectional view. taken substantially on line 4-4 of Figure 2.

Figure 5 is a plan view, showing the completed clamp securing two end portions of a hose to a coupling. 1

Referring now to the drawings in detail, it will be seen that the embodiment of the invention which has been illustrated comprises a bar I of suitable material, Mounted on one end portion of the bar I is a handle 2. The handle 2 is provided with a substantially rectangular socket At an intermediate point, the bar I has formed" therein alongitudinal slot 1. Rising from this portion of the bar I, on opposite sides of theslot I, are integral bearings 8. A winding shaft 9 of suitable material is journaled, at an interme- Hansen, Sus mammal. s1, 194 2.net; .No. 431080 1 Claim- (orf s'ilisl'si v i I diate point, in the bearings 8. On'cpposite sides.

on a suitable pin lt'between the ears I2 is a pawl i4. Thepawl I 4 is en'gageable with a ratchet 'wheel I5 which'is fixed on the shaft 9 between the, bearings 8 for releasably securing said shaft against retrograde rotation. Projecting rearwardly from "the pivoted .end of the pawl I4 is a thumb lever I6 beneath which a coil spring I1 is engaged for yieldingly urging said pawl into engagement with the ratchet I 5.

Reference numeral I8 designates the end portions of a pair of hose which are connected by a suitable nipple or the like. I9. A clamp for securing this connection. is indicated at 2ll. The clamp 20 is formed from a length of suitable wirewhich' is bent upon itself in a manner to provide 'a bight portion 2| and legs 22.

It is thought that the manner of using the device will be readily apparent from a consideration ofthe foregoing. Briefly, the clamp 20 is wrapped around the hose and'the legs 22 are in- I serted through the bight portion 2| of said clamp. The grooved end 6 of the bar I is then engaged with the bightportion 2I of the clamp 20 and the end portions of the legs 22 of said clamp are inserted through the openings ID in the shaft 9. The shaft 9 is then rotated through i the medium of the wheel II for winding the end portions of the legs 22 thereon thereby tightenng the clamp. about the hose. The bar! is then swung upwardly, as viewed in Figure 2 of the drawings, for further tightening the clamp and the shaft!) is given a final turn forcompleting the tightening operation. 'Swinging movement of the bar I in the same direction is then continued for causing the grooved end 6 of said bar to disengage itself from the bight portion 2I of the clamp 20. Thelegs 22 are then cut off at a-point adjacent'the bight 2| of the c1amp29 and the remaining end portions are pounded downwardly and inwardly in the manner shown in Figure 5 of the drawings. This completes the operation. Cotter pins 23 secure the shaft 9 against longitudinal movement in the bearings 8. I 6

It is believed that the many advantages ,of a

hose clamp tool constructed in accordance with the'present invention will be readily understood,

and although a preferred embodiment of the device is as illustrated and described, it is to be understood that changes in the details of construction and in the combination and arrangement of parts may be resorted to which will fall within the scope of the invention as claimed.

What is claimed is:

A tightening tool for wire hose clamps of the type including a bight portion and end portions passing through said bight portion, comprising a substantially straight metallic bar engageable, at one end, with the bightj portion of the clamp between the end portions thereof, said one end of the bar having atransverse groove therein for the reception of the clamp, a transverse handle fixed on the other end of the bar,

point, in the bearings, pins in the shaft on the outer sides of the bearings for retaining the shaft against sliding movement therein, said shaft having openings therein on opposite sides of the :bar for receiving the end portions of the clamp, a hand wheel fixed on one end portion of the shaft for actuating same for winding the end portions of the clamp thereon, a ratchet wheel fixed on the shaft between the bearings, a pair of ears rising from the bar between the bearings and the handle, and a spring pressed pawl pivotally mounted Hbetweensaid bearings and engageable with the ratchet wheel for re- .leasably securing the shaft against retrograde q rotation, said pawl including manual actuating means extending adjacent the handle and operable therefrom for disengaging said pawl from the ratchet wheel.

HENRY J. HENSEN. 

